Asked by rfvv

1. I saw a UFO in the sky yesterday.
2. I saw a UFO in the air yesterday.
3. I saw two UFOs in the sky yesterday.
4. I saw two UFOs in the air yesterday.
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Which expressions are correct?

Answered by Reed
All are correct. I think we would use "sky" more than "air", but both would be correct.
Answered by Reed
We do say that flying objects such as airplanes, hot air balloons, helicopters, etc., are "in the air".
Answered by Candy
We usually say the UFO.Why you say a UFO?
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